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Please help asap, tysm!

 Apr 24, 2018
 #1
avatar+101406 
+2

First one 

 

The measure  of   angle AED  =  (1/2)(arc AD + arc BC)

 

angle AED  =  (1/2)(38 + 162)

 

angle AED  (1/2) (200)  =   100°

 

 

Second one ....this is the intersecting chord theorem

 

It says  that  

 

DE * EB  =  AE  * EC

 

 3 * 16   =   4 * EC

 

48  = 4 * EC       divide both sides by 4

 

12  = EC

 

 

cool cool cool

 Apr 24, 2018

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